21968912

素因数分解:

$2^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2687}}^1$

素因数の和:2775

約数の個数: 40

約数和(自身を含む): 49330176

約数和(自身を除く): 27361264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 73, 112, 146, 292, 511, 584, 1022, 1168, 2044, 2687, 4088, 5374, 8176, 10748, 18809, 21496, 37618, 42992, 75236, 150472, 196151, 300944, 392302, 784604, 1373057, 1569208, 2746114, 3138416, 5492228, 10984456, 21968912]

約数ペア:

[(1, 21968912), (2, 10984456), (4, 5492228), (7, 3138416), (8, 2746114), (14, 1569208), (16, 1373057), (28, 784604), (56, 392302), (73, 300944), (112, 196151), (146, 150472), (292, 75236), (511, 42992), (584, 37618), (1022, 21496), (1168, 18809), (2044, 10748), (2687, 8176), (4088, 5374)]